added tests for user edit page
added edit action to users controller and implemented view
added test helper to sign users in
added tests for the user update action
added update action
added tests for edit and update action authentication
added signed_in_user before filter
added test for edit and update actions requiring the right user
added a correct_user before filter to users controller to protect edit and update page
Added urrent_user? method to session helper and refactored edit and update user actions
added test for friendly forwarding
added location storage
implemented store_location when checking if the user is signed in and utilised redirect_back_or on successful sign-in
testing that the index action is protected and required a signed in user for the index action in the users controller
added test for user index page
temporarily implemented index action in users controller to pull all users from model
implemented the user index view
implemented css for the user index
added test for the Users link URI
updated header - now has correct URI for users link